package com.lxz.bookmanager.service;

import com.lxz.bookmanager.entity.User;
import org.springframework.stereotype.Service;


public interface UserService {
    //查询用户名
    User getUserByUsername(String username);

    //修改用户密码
    void changePassword(String username, String newPassword);

    //根据用户名获取密码
    String getPassword(String username);
}
